Optical scanner



FIG. 1 is a top front and left side perspective view of an optical scanner showing our new design;

FIG. 2 is a top plan view thereof on an enlarged scale;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan view thereof.

The left side elevational view thereof is identical to the right side elevational view shown in FIG. 4. 

The ornamental design for an optical scanner, as shown and described. 